Marco Rubio continually loses his way and forgets that the main stream of American society is feeling alienated and disenfranchised. And it seems that Rubio can be bought and will change, chameleon-like, depending on who he is talking to and what he hopes to benefit from them.
Of course, the biggest mistake he made is with the Gang of Eight and the amnesty program. He made common cause with Democrats who want lots of new Latino voters who will be Democrats for life if they are given amnesty. He did this to unite with big business, which means donors, who want cheap labor. He ignored the fact that millions of illegal immigrants are flooding the country, taking jobs that Americans will do, taking lots of government services, and disrupting societies and standards. There is no attempt to assimilate, only to impose. Rubio later tried to explain after it cost him his credibility, but he was caught lying. His believability has sunk to new lows, and now he has decided to throw in with another group that is not interested in assimilating. He is simply digging a bigger and bigger hole.
Rubio against U.S. citizens again, page 2:

Vote his$#%&!@*out also.
Really? These politicians shoud be required to serve in the Middle East before they can hold office. Not gonna happen but it would be nice
Really?
We should have banned them from pilot training. Or do you not remember 9 11.
Let them into gun ranges they make the best targets.
They need to be banned from this country
Oh, let them learn how to shot!!! They then can behead and shot us!!! What a idiot!!!
Was it wrong for them to take flying lessons? 9/11 Never Forget! Japan, China and Australia I heard do not let them in. If it’s true, good for them.
No it’s our right!
Not when they’re practicing to shoot Americans !!! That would be helping them in their intended effort…..